Wrench attachment.



PATENTED MAR. '7, 1905.

J. G. ZUMWALT. WRENCH ATTACHMENT.

APPLICATION FILED JULY 14,1904.

JO4JL/J/L C Zmza wall attozvwng We 7843200. Patented March "7, 190a,

,NTTED STATES PATENT OFFICE.

JOSEPH C. ZUMWVALT, OF CLAY CENTER, NEBRASKA, ASSIGNOR OF ONE- HALF TO GILBERT E. S ONE, OF HARVARD, NEBRASKA, AND BER- TRUM GREGGS, OF CLAY CENTER, NEBRASKA.

WRENCH ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 784,200, dated March '7, 1905.

Application filed July 14, 1904- Serial No. 216,564.

To to 007mm it Hm y (WW/8PM: wardly-bent ends 6 of a spring-Wire bearing Be it known that l, J osnru C. ZUMWALT, a and holding ring 7. citizen of the United States, residing at Clay In applying the attachment to a wrench Center, in the county of Clay and State of N ethe ring 7 is slipped onto the end of the inner 5 braska, have invented certain new and useful jaw of the wrench, with the roller 2 engaging Improvements in \Vrench Attachments; and the working face of said jaw. The jaws oi I do declare the following to be a full, clear, the wrench are now adjusted to take the pipe and exact description of the invention, such it is desired to turn and so applied to the same as will enable others skilled in the art to which that the roller will engage the side of the pipe 10 it appertains to make and use the same. so that when the wrench is pushed or forced This invention relates to attachments for 1n the proper dlrectlon said roller will be wrenches. wedged between the pipe and the working The object of the invention is to provide face of the wrench-jaw, thereby tightly gripan attachment for nut-wrenches whereby the ping the pipe and preventing the wrench from I 5 same may be adapted for use as a pipe-wrench. slipping or turning on the same.

A further object is to provide an attach- W'hen the attaehmentis not in use, the same ment of this character which will be simple in may be carried in the pocket and may, it' deconstruction, etiicient in operation, easilyand sired, be utilized as a key-ring, the ends of quickly applied and removed from a wrench, the same being sprung out oi the bearing- 20 inexpensive, and well adapted to the purpose sockets on the roller to permit the placing of for which it is designed. keys thereon, after which the ringis again 5 W 1th these and other ob ects in new the connected with the roller. lnventlon consists of certain novel features of From the foregoing descriptlon, taken in construction, combination, and arrangement connection with the accompanying drawings,

5 of parts, as will be more fully described, and the construction and operation of the invenparticularly pointed out in the appended tion will be readily understood without re- 7 claims. quiring a more extended explanation.

In the accompanying drawings, Figure l is Various changes in the form, proportion, a side elevation of a wrench having the atand the minor details of construction may be 3 tachment applied thereto and showing the resorted to without departing from the prinmanner of using the same. Fig. 2 is a detail ciple or sacrificing any of the advantages of perspective view of the attachment, and Fig. this invention.

3 is a sectional view of the same. Having thus described my invention, what Referring more particularly to the draw- 1 claim as new, and desire to secure by Letters 35 ings, 1 denotes the attachment, which con- Patent, 184

sists of a solid cylindrical roller 2, preferably 1. An attachment for nut-wrenches consist- 30 formed of hardened steel. The ends 3 of said ing of a roller and a spring-metal ring pivotroller are reduced or of slightly less diameter ally connected to the same whereby said roller than the main or central portion 4 of the same, may be removably applied to the jaw of a nut- 4 and said central portion is checkered or wrench to adapt the same for use as a pipeserrated to form a gripping-surface. In each Wrench, substantially described. 5 end of the roller 2 are formed alined conical- 2. An attachment for nut-wrenches consistshaped recesses 5, which form bearing-socking of a cylindrical roller, having a checkets adapted to receive the conical-shaped inered or serrated surface, bearing-sockets In testimony whereof I have hereunto set my hand in presence of two subscribing Wit- IO nesses.

JOSEPH (J. ZUMWALT.

Witnesses:

JOHN SGHWINDT, L. F. FRYAR. 

